"Aside from a few minor graphical issues (including Steve Nash's hair), NBA 2K6 is the best basketball game on Xbox 360. We just came off a session with NBA Live 06 when we picked up the controller for some NBA 2K6 action, and the difference in gameplay was clear. NBA Live 06 currently has a slight advantage in the visual department, but we all know that gameplay is the most important factor. However, both games were right around 80%, so we're reserve final judgment until we've got review builds in-hand. NBA 2K6 is on track for a launch release on November 22, and we'll have more coverage on the hot b-ball title over the next few weeks."

They're fine. I actually prefer an always connected experience.
I'd really prefer an offline way to play, but its not a bother.
I don't really like them, and am more reluctant to buy a game because of it.
I won't buy them. I want my games offline.